WO2007004325A1 - S1-5を含有するタンパク質製剤 - Google Patents
S1-5を含有するタンパク質製剤 Download PDFInfo
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- WO2007004325A1 WO2007004325A1 PCT/JP2005/024137 JP2005024137W WO2007004325A1 WO 2007004325 A1 WO2007004325 A1 WO 2007004325A1 JP 2005024137 W JP2005024137 W JP 2005024137W WO 2007004325 A1 WO2007004325 A1 WO 2007004325A1
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Definitions
- the present invention relates to a non-human knockout animal lacking the S1-5 gene and exhibiting an age-related disease or symptom, and a method for producing the same.
- the present invention also relates to a method for screening a preventive or therapeutic agent for age-related diseases or symptoms, characterized by administering a candidate substance to the animal.
- the present invention also relates to cells isolated from the non-human knockout animal and uses thereof, and further to S1-5 protein and uses thereof.
- Rheumatoid arthritis (hereinafter abbreviated as RA) is a systemic chronic inflammatory disease in which abnormal proliferation is seen in the synovial tissue of the joint.
- Synovial cells are fibroblast-like cells that form 1 to 6 epithelial-like layers in the synovium of the joint, and are supposed to supply oral theodorican and hyaluronic acid to the synovial fluid. Yes.
- Various symptoms are observed in the joints of RA patients, such as the proliferation of synovial tissue, the resulting multilayer structure, and the infiltration of inflammatory cells.
- S1-5 also known as EFEMP-1, FBNL, or FBLN-3
- S1-5 is a protein isolated by the present inventors for the first time as a synoviolin binding factor.
- S1-5 was overexpressed in human diploid fibroblasts and was isolated as a gene (Leucka-Czernik, B. et al., Mol. Cell). Biol. 15: 120-128, 1995). Structurally, an epidermal growth factor-like domain (EGF) -like domain that promotes DNA synthesis (cell proliferation) and a fibrin-like domain have been found. Recently, changes in S1-5 It has been reported that it is associated with different mosquito S, Malattia Leventinese (ML) and Doyne honeycomb retinal dystrophy (DHRD) (Non-patent Document 1).
- EGF epidermal growth factor-like domain
- ML Malattia Leventinese
- DHRD Doyne honeycomb retinal dystrophy
- Patent Document 1 International Publication No. WO02 / 052007 Pamphlet
- Non-Patent Document 1 Stone, E.M. et al, Nature Genetics 22: 199-202, 1999
- An object of the present invention is to provide a non-human knockout animal deficient in the S1-5 gene and exhibiting an age-related disease or symptom and a method for producing the same. It is another object of the present invention to provide a screening method for a preventive or therapeutic drug for age-related diseases or symptoms, which comprises administering a candidate substance to the animal. Another object of the present invention is to provide a cell isolated from the non-human knockout animal and its use, and further an S1-5 protein and its use.
- S1-5 protein is a bone deformity, osteoporosis, Paget's disease, hyperparathyroidism, decreased bone density, cortical cancellous ossification, hair loss, tissue damage or necrosis, tumor, chest Hypertrophy, ascites, anemia, bleeding, skin aging (stains, dullness, sagging, fine lines, moles) Etc.) and the treatment and prevention of age-related diseases such as nail aging.
- the present invention is as follows.
- Age-related diseases or symptoms include bone deformity, osteoporosis, Paget's disease, hyperparathyroidism, decreased bone density, cortical cancellous ossification, hair loss, tissue damage or necrosis, tumor, breast
- the animal according to [1] which is at least one selected from the group strength of partial hypertrophy, ascites, anemia, bleeding, skin aging and nail aging.
- the animal is a zebrafish, mouse, rat, guinea pig, rabbit, chicken, pig, sheep, goat, inu, ushi, monkey, and any group force that also has chimpanzee power. [1] The animal according to [1].
- the cell according to [5] which is a dermal papilla cell, hepatocyte, pigment cell, adipocyte, uterine endothelial cell, or alveolar epithelial cell.
- Age-related diseases or symptoms include bone deformity, osteoporosis, Paget's disease, hyperparathyroidism, bone density, cortical cancellous ossification, hair loss, tissue damage or necrosis, tumor, chest hypertrophy, [7] The method according to [7], wherein at least one selected from the group strength of ascites, anemia, bleeding, skin aging and nail aging.
- Animals are zebrafish, mice, rats, guinea pigs, rabbits, chickens, pigs, [7] The method according to [7], wherein the group force including the di, goat, inu, ushi, monkey, and chimpanzee force is also selected.
- Cells are osteoclasts, keratinized epithelial cells, blood cells, cancer cells, bone marrow cells, fibroblasts, vascular endothelial cells, dermal cells, muscle cells, nerve cells, lymphocytes, vascular smooth muscle cells, [12]
- Age-related diseases or symptoms include bone deformity, osteoporosis, Paget's disease, hyperparathyroidism, decreased bone density, cortical cancellous bone, hair loss, tissue damage or necrosis, tumor, breast
- An osteoclast characterized by contacting an osteoclast derived from the non-human knockout animal according to any one of [1] to [4] with a candidate substance for an osteoclast function inhibitor. Function screening method for inhibitors.
- amino acid sequence described in SEQ ID NO: 2 or 4 comprises an amino acid sequence in which one or more amino acids are substituted, deleted, inserted, and Z or added, and described in SEQ ID NO: 2 or 4
- a preventive or therapeutic agent for an age-related disease or symptom comprising the protein according to [16] or the peptide according to [17] or [18].
- Age-related diseases or symptoms include bone deformity, osteoporosis, bone pad disease, hyperparathyroidism, decreased bone density, cortical cancellous ossification, hair loss, tissue damage or necrosis, tumor
- An osteoclast function inhibitor comprising the protein according to [16] or the peptide according to [17] or [18].
- FIG. 1 is a diagram showing the structure of a targeting vector for deleting the Sl-5 gene.
- 1 acZ gene was introduced into the translation start point of mouse S1-5 gene fragment (ATG codon that translates the first methionine; indicated by *), and neomycin resistance (neo) gene was introduced as a positive selection marker gene.
- neo neomycin resistance
- DT-A diphtheria toxin A
- Individuals who have undergone homologous recombination express ⁇ -galatatosidase instead of losing the S1-5 gene, and the expression of the S1-5 gene from the promoter can be detected by lacZ staining using its enzymatic activity.
- V The position of V and the probe is also shown.
- FIG. 2 is a photograph showing the results of genotype analysis of Sl-5 gene mutant mice.
- A shows the results of Southern blot analysis using the probe shown in Fig. 1 after extracting DNA from the mouse tail, digesting with BamHI.
- B shows the northern plot analysis result.
- FIG. 3A is a photograph showing the phenotype of a 26-month-old S1-5 knockout mouse.
- S1-5-/-male (animal number: 1101).
- Spine is dorsal, hair loss, facial skin wound, nail necrosis, chest enlargement, ascites during dissection, tumor in liver during dissection.
- FIG. 3B is a photograph showing the phenotype of a 26-month-old Sl-5 knockout mouse.
- S1-5-/-female (animal number: 1097).
- Spine is dorsal, difficult to stop, low hematocrit, nail necrosis, bleeding mass in the fundus, enlarged uterus during dissection, bleeding mass in adipose tissue during dissection.
- FIG. 3C is a photograph showing the phenotype of a 26-month-old S1-5 knockout mouse. S1-5-/-female (animal number: 1103). The spine is dorsal.
- FIG. 4 is an X-ray photograph showing bone deformation of wild type mice and S1-5 knockout mice.
- FIG. 5 is an X-ray photograph showing bone deformation of wild type mice and S1-5 knockout mice.
- FIG. 6 is an X-ray photograph showing bone deformation of an S1-5 knockout mouse.
- FIG. 7A is a photograph showing the spinal curvature angle of S1-5 knockout mice.
- B shows X-rays of each week-old mouse, then measures the angle of the spinal curve, and the incidence of the spinal curve angle of S1-5 knockout mice It is a figure compiled by age
- FIG. 8 is a graph summarizing the spinal curvature angles of Sl-5 knockout mice by age.
- FIG. 9 Figures and photos showing the bone density measurement results of the spine (thoracic vertebrae (10-12) and lumbar vertebrae (1-3) of Sl-5 knockout mice.
- SB1-855 is the animal number, and the numbers in the bar graph are Age, the number in parentheses indicates the heel angle.
- FIG. 10 is a graph showing the bone density measurement results of the spine (thoracic vertebrae (10-12) and lumbar vertebrae (1-3) of S1-5 knockout mice. Each bar graph represents the average value of each group. Numbers indicate n numbers.
- FIG. Ll is a diagram and a photograph showing the bone density measurement results of the femur of Sl-5 knockout mice.
- SB1-855 etc. indicate the animal number, and the numbers in the bar graph indicate the age of the week.
- FIG. 12 shows the bone density measurement results of the femurs of Sl-5 knockout mice.
- the numbers in the bar graph indicate n numbers.
- FIG. 13 is a photograph showing a micro CT image of the spine (thoracic vertebrae (10-12) of Sl-5 knockout mice. SB1-855, LB594, etc. indicate animal numbers.
- FIG. 14 is a graph showing the pQCT measurement results of Sl-5 knockout mice.
- FIG. 15 is a graph showing urinary NTx values of S-5 knockout mice. One week of pooled urine was measured for each individual.
- FIG. 16 is a graph summarizing urinary NTx values of Sl-5 knockout mice by age.
- FIG. 17 is a photograph showing bone tissue in hard tissue stained specimens of femurs of female Sl-5 knockout mice and wild type mice. SB2-905, LB574, etc. indicate animal numbers.
- FIG. 18 is an enlarged photograph of bone tissue in a hard tissue stained specimen of the femur for a representative example of the female S1-5 knockout mouse and wild type mouse shown in FIG. SB2-905, LB574 etc. indicate animal numbers.
- FIG. 19 shows a photograph of osteoclasts in a tissue section of a Sl-5 knockout mouse and a figure and a photograph showing the number of TRAP positive cells.
- FIG. 20 is a graph showing the results of measuring the area of osteoclasts in tissue sections of S1_5 knockout mice.
- FIGS. 21A-C A shows the experimental process.
- B and C are graphs showing the osteoclast-forming ability of S1-5 knockout mouse-derived bone marrow cells.
- B shows the result of measuring the number of TRAP-positive multinucleated cells by TRAP staining.
- C shows the results of the TRAP solution assembly.
- FIG. 21D_E D is a graph showing the results of measuring the area of TRAP-positive multinucleated giant cells.
- E is a photograph showing the osteoclast-forming ability of S1-5 knockout mouse-derived bone marrow cells.
- FIG. 22 is a photograph showing the results of sucking with a filter paper the blood that swells every 10 seconds after cutting the tail of an Sl-5 knockout mouse.
- SB1-727, LB438 etc. indicate animal numbers.
- FIG. 23 is a photograph showing the hematocrit value of S1-5 knockout mice. SB1-739, LB438 etc. indicate animal numbers.
- FIG. 24 is a graph showing a hematocrit value of S1-5 knockout mice. SB1-739, LB438, etc. indicate animal numbers.
- FIG. 25 is a Giemsa-stained photograph of a blood smear prepared from the tail vein force of Sl-5 knockout mice.
- LB438, LB487, etc. indicate animal numbers.
- FIG. 26 is a photograph showing the expression of S1-5-His protein in CHO-K1 cell line (Balta). N shows CHO-Kl cells after transfection! /, NA! /, P shows CHO-K1 cells that transiently expressed SI-5-His protein.
- FIG. 27 is a photograph showing the expression of S1-5-His protein in the cloned CHO-K1 cell line. N is transfusioned! /, Na! /, CHO-Kl cells
- FIG. 28 is a photograph showing the expression of SI-5-His protein in the cloned CHO-K1 cell line. N indicates transfection-! /, NA! /, CHO-Kl cells.
- FIG. 31 is a schematic diagram of S1-5 truncate protein.
- FIG. 32A is a photograph showing the preparation results of Sl-5-His truncate protein.
- FIG. 32B is a photograph showing the preparation results of Sl-5-FLAG truncate protein.
- FIG. 33 FLAG-S1-5 protein (A) purified from cells using anti-FLAG antibody and FLAG-S1-5 protein purified from culture supernatant using anti-FLAG antibody (B), anti-S
- FIG. 2 is a photograph showing the results of detection by the Western plotting method using an AG antibody.
- FIG. 35 is a photograph showing the results of detecting Sl-5-His protein treated with glycosylpeptidase F by Western plotting using anti-S1-5 antibody.
- FIG. 36 is a photograph showing the results of detecting Western blotting method for GST-S1-5-His truncate protein purified from E. coli and treatment with precision protease the GST-S1-5 protein.
- FIG. 37 is a photograph showing the results of detection of MBP-S1-5 protein purified from E. coli by CBB staining and Western blotting using anti-S1-5 antibody. 1 indicates GST-S1-5 protein and 2 indicates MBP-S1-5 protein.
- FIG. 38 is a photograph showing the result of detection of precision protease-treated MBP-S1-5 protein purified also by E. coli ability by CBB staining.
- FIG. 39A is a diagram showing an experimental process.
- B is an osteoclast-forming ability of bone marrow cells derived from S1-5 knockout mice CHO-K1 cell-derived Sl-5-His protein suppresses B It is a graph to show. B graphed the number of TRAP-positive multinucleated cells.
- FIG. 40 is a graph showing that osteoclast-forming ability of bone marrow cells derived from Sl-5 knockout mice is suppressed by CHO-K1 cell-derived S-to-5-His protein. The number of TRAP-positive multinucleated giant cells was graphed.
- FIG. 41 is a photograph showing that the osteoclast-forming ability of bone marrow cells derived from Sl-5 knockout mice is suppressed by CHO cell-derived S1-5-His protein.
- FIG. 42A is a graph showing that the area force of TRAP-positive multinucleated giant cells is decreased by CHO cell-derived S1-5-His protein.
- FIG. 42B shows a photograph of a stained TRAP-positive multinucleated giant cell whose formation was suppressed in a CHO cell-derived Sl-5-His protein concentration-dependent manner.
- FIG. 43 is a graph showing that osteoclast-forming ability of bone marrow cells derived from S1-5 knockout mice is suppressed by 1-5-His protein. The number of TRAP positive multinucleated cells was graphed.
- FIG. 44 is a graph showing that osteoclast-forming ability of bone marrow cells derived from S1-5 knockout mice is suppressed by 1-5-His protein. Graphed the number of TRAP-positive multinucleated giant cells
- FIG. 45 is a photograph showing that osteoclast-forming ability of bone marrow cells derived from Sl-5 knockout mice is suppressed by Sl-5-His truncate protein.
- FIG. 46A is a diagram showing an experimental process.
- B is a graph showing that the osteoclast shape performance of RAW264.7 cells is suppressed by S-5-His protein derived from CHO-K1 cells.
- FIG. 47 is a photograph showing that osteoclast-forming ability of RAW264.7 cells is suppressed by Sl-5-His protein.
- FIG. 48 is a graph showing that osteoclast-forming ability of RAW264.7 cells is suppressed by 293F floating cell-derived S1-5-FLAG protein.
- FIG. 49 is a graph showing that osteoclast-forming ability of RAW264.7 cells is not suppressed by S1-5 protein in a cell-free expression system.
- FIG. 50 is a graph showing that osteoclast-forming ability of RAW264.7 cells is suppressed by GST-S1-5 protein.
- FIG.51 The osteoclast-forming ability of RAW264.7 cells is suppressed by GST-S1-5 protein. It is a photograph showing this.
- FIG. 52 is a graph showing that osteoclast-forming ability of RAW264.7 cells is not suppressed by GST protein.
- FIG. 53 is a photograph showing that osteoclast-forming ability of RAW264.7 cells is not suppressed by GST protein.
- FIG. 54 is a graph showing that osteoclast-forming ability of RAW264.7 cells is suppressed by precision protease-treated GST-S1-5 protein.
- FIG. 55 is a photograph showing that osteoclast-forming ability of RAW264.7 cells is suppressed by precision protease-treated GST-S1-5 protein.
- FIG. 56 is a graph showing that the osteoclast-forming ability of RAW264.7 cells is not suppressed by the precision protease-treated GST protein.
- FIG. 57 is a photograph showing that the osteoclast-forming ability of RAW264.7 cells is not suppressed by the precision protease-treated GST protein.
- FIG. 58 is a graph showing that the bone density of the femur was restored by S1-5 protein administration in ovariectomized (OVX) rats.
- FIG. 59 is a graph showing that the femoral bone strength recovered by administration of S1-5 protein in ovariectomized (OVX) rats.
- FIG. 60 is a photograph showing that the bone mass of the femur was recovered by administration of S1-5 protein in ovariectomized (OVX) rats.
- FIG. 61 is a photograph showing that the number of osteoclasts in the tissue was suppressed by administration of S1-5 protein in ovariectomized (OVX) rats.
- B is the graph.
- FIG. 62 is a graph showing that the bone density of the femur was recovered by administration of S1-5 protein in ovariectomized (OVX) mice.
- the gene encoding S1-5 is known, accession number AAA65590 (nucleotide accession U03877), 138449, NP_061489 (nucleotide accession NM 018894), NP— 00409 6 (nucleotide accession NM 004105), or SI-5 protein specified in Q12805, and similar proteins that have activity to bind to human synoporin protein can be used (Leucka-Czernik) , B. et al., Mol. Cell. Biol. 15: 120-128, 1995; Heon, E. et al, Arch. Ophthalmol. 114: 193-198, 1996; Ikega wa, S.
- the Sl-5 gene can also be obtained from genomic libraries such as mice and rats.
- a target clone can be obtained from a bacterial artificial chromosome (BAC) library by a hybridization method. It can also be obtained by PCR.
- BAC bacterial artificial chromosome
- the present invention relates to a non-human knockout animal exhibiting an age-related disease or symptom that has lost the function of all or part of the D S1-5 gene, and 2) all or part of the S1-5 gene.
- a method for producing a non-human knockout animal that causes an age-related disease, characterized by loss of function The loss of the function of all or part of the S1-5 gene can be exemplified by the disruption or mutation of the S1-5 gene.
- a gene targeting method can be employed to produce a knockout animal in which all or part of the functions of S1-5 have been lost.
- the S1-5 gene targeting vector is for losing the function of all or part of the gene by disrupting the S1-5 gene.
- “to lose the function” means to completely lose the function of the gene or to make the function of the gene lower than that of the wild type.
- the gene In order to lose the function, the gene is simply destroyed or deleted, or a modification is made such as introducing a mutation into the gene so that the reading frame is shifted at the translation stage. That's fine.
- the "knockout animal" of the present invention can be prepared as follows.
- a part or all of the base sequence of the S1-5 gene is modified into a totipotent cell, and a totipotent cell into which the modified S1-5 gene has been introduced is selected. Then selected One of the homologous chromosomes can be obtained by introducing chimeric tomatopotent cells into the fertilized egg by introducing the differentiated totipotent cells that have undergone genetic modification (deletion, destruction, mutation, etc.) and mating the resulting chimeric individuals or Create an individual that knocks out both S1-5 genes.
- the type of animal used in the present invention is not particularly limited. Examples include zebrafish excluding humans, mice, rats, guinea pigs, rabbits, rabbits, pigs, hidges, goats, nu, sushi, monkeys, and chimpanzees. In the present invention, handling is easy and breeding is easy! /, Mice are preferred! /.
- Modification refers to adding a mutation that causes deletion, substitution, or addition to a part of the DNA of the S1-5 gene.
- these mutations include deletion (deletion) of part or all of the base sequence by genetic engineering techniques, or insertion or substitution of another gene or base sequence.
- an S 1-5 deficient gene can be prepared by shifting the codon reading frame or destroying the function of the promoter or exon. As a result, the function of the S 1-5 protein, which is the expression product of the S1-5 gene, is not expressed.
- the knockout mouse of the present invention can be prepared by a known gene recombination method (gene targeting method).
- the gene targeting method is a well-known technique in this field, and is disclosed in various experiments in this field.
- the site that causes a change in the structure of the S1-5 gene is not particularly limited as long as the function of the S1-5 gene is lost. However, in consideration of the function and structure of the S1-5 gene, it is particularly preferred to design so that the region of the EGF-like domain or fibrin-like domain of the S1-5 gene is deleted.
- a recombinant into which a vector has been introduced may be selected by using a combination of screening using a drug resistance gene introduced by a targeting vector and screening using Southern blotting or PCR. preferable.
- a marker gene for drug selection neomycin resistance gene, hygromycin B phosphotransferase gene and the like can be used.
- HSV thymidine kinase gene, diphtheria toxin A gene, etc. can be used as the negative selection gene.
- Homologous recombination is performed using the targeting vector prepared by the above method.
- “homologous recombination” means that the modified S1-5 gene is artificially recombined with the DNA region of the S1-5 gene in the genome.
- mouse ES cell lines have been established as mouse ES cells.
- TT-2 cell line, AB-1 cell line, J1 cell line, R1 cell line, etc. can be used.
- Which ES cell line to use can be appropriately selected depending on the purpose or method of the experiment.
- blastocysts that are 3.5 days after fertilization are generally used, but in addition to this, an 8-cell embryo is collected and cultured until blastocysts are used. Many early embryos can be obtained well.
- the ES cell line obtained in this manner is usually very proliferative, it tends to lose its regenerative ability, so it needs to be subcultured carefully.
- a suitable feeder cell such as STO fibroblast
- Wbitory factor (LIF) l ⁇ l OOOOU / ml
- a carbon dioxide incubator preferably 5% carbon dioxide, 95% air Or 5% oxygen, 5% carbon dioxide, 90% air
- trypsin / EDTA solution treatment to make a single cell and seed on a newly prepared feeder cell Method is adopted.
- Such passage is usually performed every 1 to 3 days, and it is preferable to observe the morphology of the cells.
- methods such as calcium phosphate coprecipitation method, electopore position method, lipofusion method, retrovirus infection method, aggregation method, microinjection method, particle gun method, etc. can be employed.
- the electoral position method is preferred because it can easily process a large number of cells.
- the obtained recombinant ES cells are screened for homologous recombination. That is, screening is first performed with a drug resistance factor into which neomycin or the like has been introduced.
- drug resistance genes include neomycin resistance gene, hygromycin B phosphotransferase gene, diphtheria toxin A gene and the like, and reporter genes include, for example, j8-galactosidase gene, chloramphee-cholaseyltransferase gene and the like.
- the obtained recombinant ES cells were used for Southern blot analysis using the DNA sequence on or near the S1-5 gene as a probe, or the DNA sequence on the targeting vector and the targeting vector.
- a PCR method using a DNA sequence in a nearby region other than the mouse-derived S1-5 gene as a primer, it is possible to reliably screen for homologous recombination.
- a chimeric embryo incorporated into the cell mass of the host embryo is formed.
- methods for introducing ES cells into embryos such as blastocysts, the microinjection method and the aggregation method are known, but any method can be used and can be appropriately modified by those skilled in the art. .
- mice In the case of mice, a hormone agent (for example, using a human chorionic gonadotrophs (hCG) that has a follicle stimulating hormone (FSH) -like action 3 ⁇ 4r3 ⁇ 4 pregnant mare's serum gonadotropin (PMSLr) and a loteinizing hormone (LH) action)
- hCG human chorionic gonadotrophs
- FSH follicle stimulating hormone
- PMSLr pregnant mare's serum gonadotropin
- LH loteinizing hormone
- Female mice that have been superovulated are mated with male mice. Thereafter, early development from the uterus occurs on day 3.5 after fertilization when using blastocysts, and day 2.5 when using 8-cell stage embryos. Harvest embryos. The embryos thus recovered are injected in vitro with ES cells that have undergone homologous recombination using a targeting vector to produce chimeric embryos.
- a chimeric mouse can be obtained by transplanting these to a foster parent and allowing them to develop and grow.
- a pseudopregnant female mouse for use as a foster parent can be obtained by mating a female mouse having a normal cycle with a male mouse castrated by vagina ligation or the like.
- a chimeric mouse can be prepared by transplanting the chimeric embryo produced by the above-mentioned method into the uterus to the produced pseudopregnant mouse and giving birth to a baby. In order to ensure the implantation and pregnancy of chimeric embryos, it is desirable to create a group of female mice that have the same sexual cycle between female mice that collect fertilized eggs and pseudopregnant mice that serve as foster parents. .
- a chimeric mouse is selected from the pups born by the temporary parents. If a mouse individual derived from an ES cell-transplanted embryo is obtained, this chimeric mouse is mated with a wild-type mouse, and it is confirmed whether or not an ES cell-derived trait appears in the next-generation individual. When a trait derived from an ES cell appears in a next generation individual, it can be considered that the ES cell may have been introduced into the germ line of the chimeric mouse. In order to confirm that ES cells have been introduced into the germ line, it is preferable to use the coat color as an index, considering the ease of confirming the ability to use various traits as an index.
- mice hair colors such as wild mouse color (agouti), black, ocher, chocolate and white are known. It is also possible to select the body part (eg tail tip) force by extracting chromosomal DNA and performing Southern plot analysis or PCR. Mice with a high chimera contribution rate are likely to have ES cells introduced into the chimeric mouse germline. After selecting a chimeric mouse as described above, the chimeric mouse is mated with a wild-type female to obtain F1 to establish a mutant mouse strain.
- body part eg tail tip
- the chimeric animal obtained as described above is obtained as a heterozygote having a gene deletion only in one of the homologous chromosomes.
- RNA can be extracted from the tissue and tissue, and gene expression patterns can be analyzed by Northern plot analysis.
- blood can be collected as necessary, and blood tests and serum biochemical tests can be performed.
- a knockout animal that is a homozygote it may not be suitable as a model animal because it does not grow up to an adult, such as embryonic lethality. In that case, it is preferable to knock out when necessary. Further, in order to examine the function of a gene in a specific tissue in vivo, it is preferable to knock out the gene in a tissue-specific manner. Animals that have been knocked out only at a specific time, a specific cell line, and animals that have been knocked out only in a limited area of somatic cells are called conditional knockout animals (BioManual Series 8, Gene Targeting: ES cells). Mutated mice using a mouse, Shinichi Aizawa, Yodosha, 1995).
- Cre-loxP As a method for producing a conditional knockout animal, for example, for gene targeting, a Cre-loxP system (R. Kuhn. Et al., Science 269), a recombination system derived from Batteriophage P1. : 1427-1429, 1995). Cre is a recombination enzyme that recognizes a 34-base sequence called ⁇ and allows recombination to occur at this site. Therefore, by inserting the gene to be targeted between the ⁇ sequence and the ⁇ sequence and incorporating the Cre recombinase gene downstream of the specific promoter, site-specific and time-specific Cre is produced and the gene is sandwiched between ⁇ .
- the site that causes a change in the structure of the S1-5 gene is not particularly limited as long as the function of the S1-5 gene is lacking. Absent. However, in consideration of the function and structure of the S1-5 gene, it is particularly preferred to design it so that the EGF-like domain or fibrin-like domain region of the S1-5 gene is deleted.
- the present invention also provides cells isolated from the knockout animal force of the present invention.
- cells isolated from knockout animals can be used to prevent or treat drugs for age-related diseases or symptoms.
- Examples of the cells include osteoclasts, keratinized epithelial cells, blood cells, cancer cells, bone marrow cells, fibroblasts, vascular endothelial cells, dermal cells, muscle cells, nerve cells, lymphocytes, vascular smooth muscle cells, synovium Examples include, but are not limited to, cells, dermal papilla cells, hepatocytes, pigment cells, adipocytes, uterine endothelial cells, or alveolar epithelial cells.
- the non-human knockout animal of the present invention exhibits an age-related disease or symptom.
- Known aging model mice include Klotho mutant mice (Kuro-0, M. et al., Nature, 6; 390 (6655): 18-19, 1997), senescence accelerated model mice (SAM) (Takeda, T et al., Mech Ageing Dev., 17 (2), 183-194, 1981), Werner syndrome model mouse (Chen, L. et al., J. Biomed BiotechnoL, 2 (2), 46-54, 2002) known force These mice show premature aging and short lifespan.
- SAM senescence accelerated model mice
- the non-human knockout animal of the present invention eg, S1-5 knockout mouse
- aging disease or symptom refers to bone deformation, osteoporosis, Paget's disease of bone, hyperparathyroidium, decreased bone density, cancellous cortical bone, and alopecia.
- Bone deformity means that bone and cartilage are deformed by aging, RA, and osteoporosis resulting in a decrease in bone and cartilage strength.
- Ostoporosis refers to a condition in which bone components decrease as a whole, making it easier to fracture. Over 90% of osteoporosis is primary osteoporosis, for which no obvious causative disease is found, most of which are degenerative, occurring in middle-aged and older people. In addition, secondary osteoporosis, which is distinguished from it, is caused by Graves' disease, Cushing's syndrome, severe diabetes, RA, stomach surgery, alcohol drinking, steroid use, etc. To do.
- Paget's disease refers to bone disease characterized by increased bone turnover and disordered bone remodeling (Merck Manual Encyclopedia homepage: http: ⁇ mmh.banyu.co.jp/mmhe2j/ sec05 / ch061 / ch061a.html). Paget's disease of bone resulted in excessive activation of osteoclasts and osteoblasts in some areas of the bone, resulting in bone resorption and remodeling (remodeling) and excessive activity. Some bones are known to be brittle compared to normal bones.
- “Hyperparathyroidism” means a state in which the secretion of parathyroid hormone PTH is increased and its action is abnormally enhanced. In hyperparathyroidism, it is known that bone mass is decreased and osteoclasts are activated. “Hyperparathyroidism” refers to primary hyperparathyroidism that causes increased secretion of PTH due to a thyroid earthquake such as adenoma, chronic renal failure, pregnancy and other causes such as secondary hyperparathyroidism. Examples include, but are not limited to, secondary hyperparathyroidism.
- Tumor means all tumorigenic cell growth and proliferation, whether malignant or benign, and all precancerous and cancerous cells and tissues.
- the tumor of the present invention may be a primary tumor or a metastatic tumor.
- cancer and “cancerous” refer to a physiological condition that is typically characterized by uncontrolled cell growth.
- examples of “tumor” include carcinoma, sarcoma, leukemia and malignant lymphoma.
- the carcinoma includes breast cancer, prostate cancer, colon cancer, squamous cell cancer, small cell lung cancer, non-small cell lung cancer, gastrointestinal cancer, spleen cancer, glioblastoma, cervical cancer, ovarian cancer, May include liver cancer, bladder cancer, hepatocytoma, colorectal cancer, endometrial cancer, salivary gland cancer, kidney cancer, spawning cancer, thyroid cancer, liver cancer and various types of head and neck cancer. it can.
- examples of the sarcoma include malignant bone tumor, malignant soft tissue sarcoma, and more specifically osteosarcoma, chondrosarcoma, Ewing sarcoma, liposarcoma, leiomyosarcoma, or synovial sarcoma.
- the present invention provides a screening method for a therapeutic or prophylactic agent for age-related diseases or symptoms, which comprises administering a candidate substance to a non-human knockout animal.
- Knockout animal phenotypic complementation includes incomplete complementation as well as perfect complementation.
- an index value having a correlation with a target disease in a non-human animal or a part thereof contacted with the candidate substance by contacting the knockout animal of the present invention or a part thereof with the candidate substance is evaluated.
- the prevention / treatment / improvement effect of candidate substances is tested using as an index the increase of bone density, increase of bone strength, suppression of osteoclast function, antitumor effect, increase of blood cells, etc., improvement of hemostasis. be able to. It is also possible to test animals that cause skin aging (spots, dullness, sagging, fine lines, moles, etc.) to screen for cosmetic products that provide whitening and anti-chasing effects.
- Knockout animal or a part thereof includes both the whole body of an animal body and limited tissues or organs. In the case of limited tissues or organs, this includes those removed from animals.
- candidate substances include peptides, proteins, non-peptide compounds, synthetic compounds, fermentation products, cell extracts, plant extracts, animal tissue extracts, plasma, and the like.
- a compound may be sufficient and a well-known compound may be sufficient.
- candidate substances may form salts, and salts with physiologically acceptable acids (eg, inorganic acids) and bases (eg, organic acids) are used as the candidate substance salts.
- physiologically acceptable acid addition salts include salts with inorganic acids (eg, hydrochloric acid, phosphoric acid, hydrobromic acid, sulfuric acid, etc.) or organic acids (eg, acetic acid, formic acid, propionic acid, fumaric acid, maleic acid). Salts with acid, succinic acid, tartaric acid, succinic acid, malic acid, oxalic acid, benzoic acid, methanesulfonic acid, benzenesulfonic acid, and the like.
- inorganic acids eg, hydrochloric acid, phospho
- Examples of methods for treating a test animal with a candidate substance include oral administration, intravenous injection, coating, subcutaneous administration, intradermal administration, and intraperitoneal administration.
- the symptoms of the test animal, the nature of the candidate substance, etc. Can be selected as appropriate.
- the dosage of the candidate substance can be appropriately selected according to the administration method, the nature of the candidate substance, and the like.
- a candidate substance is administered to the non-knock animal of the present invention, and the bone density value, bone strength value, X-ray photograph, etc. of the animal are obtained. By measuring over time, substances that have shown effectiveness can be screened.
- osteoporosis and spinal dorsum are correlated, suggesting that the degree of kyphosis in knockout animals is an index for measuring the degree of progression of osteoporosis. From these, the candidate substance is administered to the knockout animal of the present invention.
- the present invention provides a screening method for a prophylactic or therapeutic agent, comprising the step of bringing a candidate substance of a prophylactic or therapeutic agent for an age-related disease or symptom into contact with the isolated cell of the knockout animal power of the present invention. To do.
- contacting can be performed, for example, by adding the candidate substance to a culture solution of cells isolated from the knockout animal of the present invention.
- a vector containing DNA encoding the protein can be introduced into a cell isolated from a knockout animal.
- a substance having an activity that complements the phenotype of a cell isolated from a knockout animal is selected from candidate substances for preventive or therapeutic agents for age-related diseases or symptoms.
- the activity that complements the phenotype of cells isolated from knockout animals is not particularly limited.
- osteoclasts suppress osteoclast activity
- bone marrow cells suppress osteoclast formation, and keratinize.
- epithelial cells keratinized epithelial cell proliferation, in the case of blood cells, blood cell differentiation promotion, in the case of cancer cells, cancer cell growth inhibition, in the case of fibroblasts, fibroblast proliferation, in the blood vessels of endothelial cells, blood vessels Endothelial cell proliferation, hair formation for dermal cells, correction of muscle cell degeneration for muscle cells, correction of nerve cell degeneration for nerve cells, suppression of lymphocyte activation for lymphocytes, vascular smooth muscle cells Growth inhibition, synovial cells functional normalization, hair papilla cells hair growth, hepatocytes functional normalization, pigment cells melanin production suppression, alveolar cells Correction of abnormal activation, suppression of differentiation and proliferation in the case of fat cells Endothelial cell growth inhibition, etc. as long as the child Imperial Household endothelial cells can be exemplified.
- complementation of the phenotype of the cell includes incomplete complementation, not just perfect complementation.
- the present invention also provides a method for screening an osteoclast function inhibitor, which comprises the step of contacting an osteoclast isolated from a knockout animal with a candidate substance for the osteoclast function inhibitor.
- osteoclast function include, but are not limited to, resorption pit formation, TRAP production ability, acting ring formation ability, protease (catebucin K, ⁇ -9) production ability, and acid secretion ability.
- TRAP resorption pit formation
- TRAP acting ring formation ability
- protease catebucin K, ⁇ -9 production ability
- acid secretion ability As long as the function is a function that directly or indirectly leads to bone destruction, it is included in “function of osteoclast”.
- the osteoclast function inhibitor is limited to this method, for example, the ability to screen using the degree, size, etc. of osteoclasts isolated from the knockout animal of the present invention as an indicator.
- the isolated bone marrow cells of the knockout animal of the present invention are divided into multinucleated giant cells, and the number of TRAP-positive multinucleated giant cells, the size of TRAP-positive multinucleated giant cells, etc. It is possible to screen for indicators (Takahashi N. et a 1., Endocrinology, 123 (5): 2600-2, 1988, Yasuda H. et al, Proc Natl Acad Sci US A., 31; 95 (7 ), 3597-602, 1998).
- osteoclast function inhibitors can be screened using resorption pit formation ability as an index (Hirayama, T. et al, J Endocrinol .: Octl75 (l): 155-63 2002, Udagawa, N. et al, Bone .: Nov; 25 (5): 517-23 1999).
- the substance selected by the screening method can be used in the research field or the pharmaceutical field as an osteoclast function inhibitor. Furthermore, the osteoclast function inhibitor of the present invention can be applied as a prophylactic or therapeutic agent for age-related diseases or symptoms.
- osteoclast function inhibitor of the invention can also be used as a preventive or therapeutic agent for RA.
- Isolated S1-5 protein The present invention relates to 1) an isolated S1-5 protein encoded by DNA containing the coding region of the base sequence described in SEQ ID NO: 1 or 3, and 2) described in SEQ ID NO: 2 or 4 An isolated S 1-5 protein comprising the amino acid sequence of is provided.
- isolated refers to a state in which the natural environment is removed.
- the protein can also be prepared, for example, as a recombinant.
- human S-5 protein can be used in cells expressing human S1-5 protein (for example, human diploid fibroblasts, RA patients recovered as synovial tissue or cultured cells).
- a cDNA library is obtained based on the mRNA extracted from the derived synovial cells (Short, JM et al, Nucleic Acid Research, 16, 7583, 1988).
- DNA encoding S1-5 protein can be isolated by screening this library to hybridize. .
- the S1-5 protein encoded from the DNA can be obtained by using a protein expression system well known to those skilled in the art for IJ.
- human S1-5 protein can be recovered and purified from cell cultures expressing human S1-5 protein.
- the present invention also provides a protein functionally equivalent to the above S1-5 protein.
- Species from which such proteins are derived are not particularly limited, for example, humans, zebrafish, mice, rats, monoremocks, usagis, dogs !; pigs, hidges, goats, nu , Sanore, chimpanzee and the like.
- proteins functionally equivalent to the S1-5 protein include, for example, 1) substitution or deletion of one or more amino acids in the amino acid sequence of SEQ ID NO: 2 or 4, deletion, insertion, and Z or An isolated protein functionally equivalent to the protein containing the amino acid sequence described in SEQ ID NO: 2 or 4, and 2) the base sequence described in SEQ ID NO: 1 or 3 An isolated protein that is functionally equivalent to the protein comprising the amino acid sequence set forth in SEQ ID NO: 2 or 4
- proteins functionally equivalent to the above S1-5 protein include proteins having a function of suppressing human age-related diseases or symptoms, Kkuauto animal or the onset, Light knockout animal powers Proteins that have the function of complementing the phenotype of isolated cells.
- Examples of the protein functionally equivalent to the S1-5 protein include immunologically equivalent proteins.
- the “protein that is immunologically equivalent to Sl-5 protein” is not particularly limited as long as it reacts with an antibody that specifically recognizes S1-5 protein.
- an S1-5 protein epitope peptide, an S1-5 protein domain containing the epitope, or a protein containing the domain as a protein immunologically equivalent to the S1-5 protein Can do.
- a fragment of the S1-5 protein can be obtained by digestion with a protease.
- a DNA library encoding the S1-5 protein shown in SEQ ID NO: 1 or 3 is randomly cleaved and inserted into a phage vector to create a phage library displaying domain peptides. be able to.
- Immunologically active domains can be determined by immunoscreening these libraries with antibodies that recognize the S1-5 protein. By determining the nucleotide sequence of the inserted fragment of the cloned phage, the amino acid sequence of the active domain can also be clarified.
- Proteins functionally equivalent to the S1-5 protein according to the present invention are defined not only based on immunological properties but also based on binding properties with synopioline. That is, the present invention includes a fragment of S1-5 protein having affinity for synopioline. Such mutants can be easily selected by those skilled in the art by screening candidate proteins using Synopioline.
- the S1-5 protein requires 120 amino acid residues corresponding to positions 1233-1592 in the Synoviolin cDNA as a region necessary for binding to Synoviolin. Therefore, a protein having an amino acid sequence ability constituting this region, or a protein that binds to a protein containing this amino acid sequence constitutes a protein functionally equivalent to the S1-5 protein according to the present invention.
- a protein functionally equivalent to the S1-5 protein according to the present invention is also defined based on the biochemical activity of the S1-5 protein.
- the biochemical activity of S1-5 protein can indicate, for example, osteoclast formation inhibitory activity and cell growth control activity (Leucka-Czernik, B. et al, Mol. Cell. Biol. 15: 120- 128, 1995).
- Proteins functionally equivalent to these Sl-5 proteins can be fusion proteins with other proteins.
- S1-5 protein is functionally A protein that maintains at least one property as an equivalent protein is included in the functionally equivalent protein. Even if the protein to be added has an activity different from that of the S1-5 protein, and if at least one function of the S1-5 protein is maintained, the fusion protein has the function of the present invention. Contained in equivalent proteins.
- Proteins functionally equivalent to the above S1-5 protein can be isolated by a person skilled in the art by a method known in the art (Experimental Medicine separate volume 'Genetic Engineering Handbook, pp246-251, Yodosha, 1991). it can.
- a target library is screened with the nucleotide sequence (or fragment thereof) shown in SEQ ID NO: 1 or 3 as a probe, DNA having a highly homologous base sequence can be cloned.
- Examples of such a library include a library in which a nucleotide sequence of SEQ ID NO: 1 or 3 is randomly mutated, a synovial tissue cDNA library derived from species other than human rabbits, and the like. Can do.
- a circular double-stranded vector that clones the gene to be mutated is made into a single strand, and a synthetic oligonucleotide having a mutation at the target site is hybridized.
- Complementary single-stranded DNA derived from a vector that has been cleaved with a restriction enzyme and linearized is annealed to the circular single-stranded vector, and the gap between the synthetic nucleotide is filled with DNA polymerase, Further, a complete double-stranded circular vector is obtained by ligation.
- the number of amino acids to be modified is typically within 50 amino acids, preferably 30 amino acids And more preferably within 5 amino acids (eg, 1 amino acid).
- the protein of the present invention is a protein in which a conservative substitution is added to the amino acid substitution described above and is functionally equivalent to the human S1-5 protein protein (SEQ ID NO: 2 or 4). Is included. Conservative substitution is considered to be important in the case of substituting amino acids in domains important for protein activity. Such amino acid conservative substitutions are well known to those skilled in the art.
- amino acid groups corresponding to conservative substitutions include basic amino acids (eg, lysine, arginine, histidine), acidic amino acids (eg, aspartic acid, glutamic acid), uncharged polar amino acids (eg, glycine, asparagine).
- basic amino acids eg, lysine, arginine, histidine
- acidic amino acids eg, aspartic acid, glutamic acid
- uncharged polar amino acids eg, glycine, asparagine
- Glutamine serine, threonine, tyrosine, cysteine
- non-polar amino acids eg, alanine, parin, leucine, isoleucine, proline, ferrolanine, methionine, tryptophan
- ⁇ -branched amino acids eg, threonine, parin, isoleucine
- aromatic amino acids eg tyrosine, phenylalanine, tryptophan, histidine
- non-conservative substitutions can be avoided by further increasing the activity of proteins (including constitutively active proteins) or decreasing (including dominant negative).
- amino acid sequence described in SEQ ID NO: 2 or 4 one or more amino acids are substituted, deleted, inserted, and / or added, so that the amino acid sequence has the amino acid sequence described in SEQ ID NO: 2 or 4
- Proteins that are functionally equivalent to the proteins they include include naturally occurring proteins.
- eukaryotic genes have a polymorphism, as is known for interferon genes and the like.
- One or more amino acids may be substituted, deleted, inserted and Z or added due to changes in the base sequence caused by this polymorphism.
- it is a naturally occurring protein, and in the amino acid sequence described in SEQ ID NO: 2 or 4, one or more amino acids have a substitution, deletion, insertion, and Z or addition amino acid sequence.
- the amino acid sequence may not change even if the base sequence changes due to the polymorphism.
- Such a nucleotide sequence variation is called a silent variation.
- a protein encoded by a DNA comprising a nucleotide sequence having a silent mutation is also included in the present invention.
- the polymorphism referred to here means that a gene has a different base sequence among individuals within a population. Polymorphism is independent of the rate at which different genes are found.
- a method for obtaining a protein functionally equivalent to the S1-5 protein a method using a hybridization can be mentioned. That is, a DNA encoding the S1-5 protein according to the present invention as shown in SEQ ID NO: 1 or 3 or a fragment thereof is used as a probe, and a DNA capable of hybridizing with this is isolated. When hybridization is performed under stringent conditions, high-homogeneous V and DNA sequences are selected as the base sequence, and as a result, the isolated protein includes proteins functionally equivalent to the S1-5 protein. Is likely to be increased.
- a highly homologous base sequence can exhibit, for example, 70% or more, preferably 90% or more identity.
- the stringent conditions specifically indicate, for example, conditions such as 6 X SSC, 40% formamide, hybridization at 25 ° C, and IX SSC, washing at 55 ° C. it can.
- the stringency depends on conditions such as salt concentration, formamide concentration, and temperature, but those skilled in the art will readily set these conditions to obtain the required stringency.
- DNA encoding the homologue of the S1-5 protein in animal species other than humans, for example. Encodes DNA that can also obtain animal species such as zebrafish, mice, rats, guinea pigs, rabbits, chickens, pigs, hidges, goats, nu, ushi, monkeys, and chimpanzees.
- the homologue of the S1-5 protein constitutes a functionally equivalent protein in the present invention.
- a protein obtained by introducing a mutation into the above S1-5 protein (SEQ ID NO: 2 or 4), or a DNA isolated using the above-described hybridization technique or the like encodes. Tan The protein usually has high homology in amino acid sequence with the above S1-5 protein (SEQ ID NO: 2 or 4). High homology refers to sequence identity of at least 30% or more, preferably 50% or more, more preferably 80% or more (eg, 95% or more).
- the identity of the nucleotide sequence and amino acid sequence can be performed using a homology search site using the Internet [For example, in Japan DNA Data Bank (DDBJ), FASTA, BLAST, PSI-BLAST, and SSEARCH [For example, the search and analysis page of the Japan DNA Data Bank (DDBJ) website; http: ⁇ www.ddbj.nig.ac.jp/ii- maii / homology -j.html].
- NCBI National Center for Biotectonology Information
- the protein according to the present invention or a functionally equivalent protein thereof is subjected to various modifications such as physiological modifications such as sugar chains, labels such as fluorescent or radioactive substances, or fusion with other proteins.
- the modification by the sugar chain varies depending on the host to be expressed.
- any S1-5 protein or function according to the present invention can be used as long as it exhibits the same properties as the S1-5 protein protein disclosed in this specification.
- the S1-5 protein can be obtained not only as a biomaterial but also as a gene recombinant by incorporating a gene encoding it into an appropriate expression system.
- S1-5 protein In order to obtain the gene by genetic engineering, it is sufficient to incorporate the DNA encoding the S1-5 protein described above into an appropriate expression system for expression.
- Examples of host Z vector systems applicable to the present invention include expression vector pGEX and E. coli.
- pGEX can express foreign genes as a fusion protein with GST (Smith DB, et al., Gene, 67: 31-40, 1988), so the gene encoding S 1-5 protein was incorporated. Introduce pGEX into E.
- the gene encoding the S1-5 protein can be obtained by amplifying a synovial cell cDNA library or the like in a saddle type by PCR or the like. Since GST according to the present invention is adsorbed to dartathione sepharose 4B, the expression product can be easily separated and purified by the affinity matrix.
- Other host / vector systems for obtaining recombinant S1-5 protein include the following.
- fusion protein expression vectors using a histidine tag, HA tag, FLAG tag, GST tag, MBP tag, etc. are commercially available.
- yeast it is known that yeast of the genus Pichia is effective for the expression of proteins with sugar chains.
- an expression system using a baculovirus vector hosted by insect cells is also useful (Bio / Technology, 6: 47-55, 1988).
- mammalian cells are used for vector transfection using promoters such as CMV, RSV, or SV40. All of these host Z vectors are S1-5 protein.
- the gene can be introduced using a viral vector such as a retrovirus vector, an adenovirus vector, or an adeno-associated virus vector.
- the obtained protein of the present invention can be isolated from the inside of a host cell or extracellular (such as a medium) and purified as a substantially pure and homogeneous protein.
- the separation and purification of proteins is not limited in any way as long as the separation and purification methods used in normal protein purification are used. For example, select chromatography column, filter, ultrafiltration, salting out, solvent precipitation, solvent extraction, distillation, immunoprecipitation, SDS-polyacrylamide gel electrophoresis, isoelectric focusing, dialysis, recrystallization, etc. , If combined, protein Can be separated and purified.
- chromatography examples include affinity chromatography, ion exchange chromatography, hydrophobic chromatography, gel filtration, reverse phase chromatography, and adsorption chromatography (Marshak et al., Strategies). for Protein Purification a nd Characterization: A Laboratory Course Manual. Ed Daniel R. Cold Spring Harbor Laboratory Press, 1996). These chromatography can be performed using liquid phase chromatography, for example, liquid phase chromatography such as HPLC and FPLC.
- the protein of the present invention is preferably a protein to which modifications such as physiological higher order structure, sugar chain addition, disulfide bond, lipid addition, methyl candy, etc. are added.
- sugar chains in the present invention include N-linked sugar chains and 0-linked sugar chains.
- N-linked sugar chains include high mannose, N-linked sugar chains such as hybrid and complex types, and 0-linked sugar chains include mucin-type (0-GalNAc), 0- Examples include 0-linked sugar chains such as Fuc type, 0-Man type, and 0-Glc type.
- the protein of the present invention is preferably a substantially purified protein.
- substantially purified means the degree of purification of the protein of the present invention (ratio of the protein of the present invention in the total protein components) force 50% or more, 60% or more, 70% or more, 80% or more, 90 % Or more, 95% or more, 100% or close to 100%.
- the upper limit close to 100% depends on the purification technique and analytical technique of those skilled in the art, and is, for example, 99.999%, 99.99%, 99.9%, 99%, etc.
- a protein purified by any purification method is included in the substantially purified protein as long as it has the above-described degree of purification.
- a substantially purified protein can be exemplified by appropriate selection or combination, but is not limited thereto.
- the present invention also provides a partial peptide (partial fragment) of the protein of the present invention described above. If the partial peptide is functionally equivalent to the protein of the present invention, the partial peptide There are no particular restrictions on the length or the like. Examples of the partial peptide of the present invention include a peptide comprising the amino acid sequence shown in SEQ ID NO: 6, which is shorter than the protein of the present invention. By using such a peptide, it is possible to prevent or treat an age-related disease or symptom, and to suppress the activity of osteoclasts.
- the present invention provides a preventive or therapeutic agent for age-related diseases or symptoms, which comprises the protein of the present invention or a partial peptide thereof (hereinafter referred to as protein or the like). “Aging diseases or symptoms” are as described above. Furthermore, the present invention provides an osteoclast function inhibitor comprising the protein of the present invention. As long as the protein in these drugs is isolated, there is no particular limitation on the state thereof, so long as it can be used as the above drug, it can be used as a substantially purified protein or a protein in a crudely purified state. You can. Moreover, it is preferable that the protein in the drug is produced in an expression system other than the cell-free system.
- These drugs are used as preventive or therapeutic agents for age-related diseases or symptoms in animals other than humans (eg, laboratory animals, livestock animals, pets, etc.) and as osteoclast function inhibitors. It can be used for IJ.
- the protein of the present invention includes, for example, a pharmacologically acceptable carrier or medium, such as sterile water or physiological saline, a stabilizer, an excipient, an antiseptic, a surfactant, a chelating agent (EDTA, etc.)
- a pharmacologically acceptable carrier or medium such as sterile water or physiological saline, a stabilizer, an excipient, an antiseptic, a surfactant, a chelating agent (EDTA, etc.)
- EDTA chelating agent
- the form (dosage form) of the drug of the present invention includes, but is not limited to, injection dosage forms, lyophilized dosage forms, solution dosage forms and the like.
- the ability to administer to a patient can be either oral or parenteral administration! /, Or a deviation.
- it is parenteral administration, and for example, injection administration is possible.
- injection administration can be systemic or local administration by intravenous injection, intramuscular injection, intraperitoneal injection, subcutaneous injection, intradermal injection, and the like.
- the dose varies depending on the weight and age of the patient, the administration method, symptoms, etc., but those skilled in the art can appropriately select an appropriate dose.
- the general dose varies depending on the effective blood concentration of the drug and the metabolic time, but the daily maintenance dose is about 0.1 mg / kg to about 1.0 g / kg. Preferably from about O.lmg / kg to about 10 mg / kg, more preferably from about O.lmg / kg to about 1.0 mg / kg.
- Administration can be divided into several doses.
- the present invention provides an antibody that recognizes S1-5 protein and the like.
- an antibody such as the S1-5 protein can be obtained by a known method; ⁇ (Hariow, E. et al., Antioodies; A Laboratory Manual. Cold bpnng Harbor, New York, 1988, Kohler, G. et al., Nature 256: 495-7, 1975).
- the immunized animal is immunized with the Sl-5 protein of the present invention or a fragment thereof together with a suitable adjuvant.
- the S1-5 protein fragment can be combined with a carrier protein to be used as an immunogen.
- a carrier protein for obtaining an immunogen mussel hemocyanin (KLH), sushi serum albumin (BSA), or the like can be used.
- FCA Freund's complete adjuvant
- FCA Freund's complete adjuvant
- Immunization is added at appropriate intervals, and when an increase in antibody titer is confirmed, blood is collected to obtain antiserum. Furthermore, if the antibody fraction is purified, a purified antibody (polyclonal antibody) can be obtained.
- monoclonal antibodies can be obtained by collecting antibody-producing cells and cloning them by a cell fusion method or the like. Monoclonal antibodies are important tools for achieving high sensitivity and specificity in immunoassays. Another method is to cut the DNA encoding synoviolin randomly and insert it into a phage vector to create a phage library displaying domain peptides. Can be obtained. Immunologically active domains can be determined by immunoscreening these libraries with antibodies that recognize Synoviolin.
- antibody-producing cells those derived from immunized animals can also be used.
- chimeric antibodies and humanized antibodies can be constructed based on the antibody genes of the monoclonal antibody-producing cells derived from the immunized animal thus obtained.
- animal antibodies are undesirable because they are excluded as foreign matter. Therefore, the steady region of highly antigenic antibodies
- a chimeric antibody in which the region is replaced with a human antibody or a humanized antibody in which not only the constant region but also the variable region framework is replaced with a human gene is required.
- the chimeric antibody or humanized antibody that recognizes S 1-5 protein and the like provided based on the present invention is useful for a drug delivery system (DDS).
- DDS drug delivery system
- a substance that can be expected to be useful by linking to the antibody includes a substance that suppresses osteoclast function (bisphosphonate, osteoprotegerin), etc. Can be shown.
- the antibody of the present invention can be used as a reagent for immunological detection of S1-5 protein and the like. Methods for immunologically detecting proteins and the like present in tissues and blood using antibodies are known.
- the antibody of the present invention can be used for separation or detection of S1-5 protein or the like, or cells expressing S1-5 protein or the like. Methods for isolating and purifying proteins using antibodies are well known to those skilled in the art.
- the S1-5 protein of the present invention can be used as a marker for synovial cells or human diploid fibroblasts. That is, synovial cells and human diploid fibroblasts can be detected and separated using the expression of S1-5 protein as an index.
- the antibody is appropriately labeled with fluorescence or the like. For example, using an antibody against S1-5 protein V, cells expressing S1-5 protein can be isolated by cell sorting or the like.
- coli (XL1-Blue MRF ') by incubating at 37 ° C for 20 minutes, mixed with Top agarose and spread on plates. After culturing at 42 ° C for 3.5 hours, a trocellose membrane immersed in 10 mM IPTG and dried was placed on a plate, and further cultured at 37 ° C for 3.5 hours. After collecting the membrane, the washing buffer [10 mM Tris-HCl (pH 8.0), 0.5% Skim milk, 0.1% TritonX-100,
- S1-5 (also called EFEMP-1, FBNL, or FBLN-3) was found in the terminal portion of 100 bp [Lecka-Czernik, B. et al ., Molecular and ellular Biology, 15, 120—128, 1995; accession number U03 877 (cDNA), AAA65590 (protein), Stone, EM et al., Nature Genetics 22, 199—202, 1999; accession number Q12805 ( It became clear that it was a common sequence with a known gene called protein)]. Both genes and their translation products were almost the same size, suggesting that they were the same protein.
- the cDNA sequence and amino acid sequence of human S1-5 are shown in SEQ ID NOs: 1 and 2, respectively.
- the lac Z gene was introduced into the translation start point of the mouse S1-5 gene fragment (ATG codon that translates the first methionine) to construct a targeting vector (Fig. 1).
- a neomycin resistance gene was introduced as a marker gene, and a diphtheria toxin A gene was also linked so that non-homologous recombination cell lines could be excluded.
- c of mouse S1-5 The DNA sequence, amino acid sequence, and genomic sequence are shown in SEQ ID NOs: 3, 4, and 5, respectively.
- the targeting vector of Example 1 was introduced into the mouse TT-2 cell line by electoporation to select a cell line that produced homologous recombination.
- the obtained cells were poured into 8-cell embryos and transplanted directly into the foster oviduct, or cells that had been cultured for one day and developed into blastocysts were transplanted into the foster parents.
- the obtained heterozygous mutant mice (F1) were crossed to obtain heterozygous and homozygous mutant mice.
- S1-5 should be expressed in the tissue, and the / 3-galatatosidase protein is expressed instead of S1-5.
- the genotype was confirmed by Southern plot analysis. DNA was extracted from about 3 mm of the tail tip of a mouse about 2 weeks old, and the obtained DNA was digested with the restriction enzyme BamHI. Bands were detected at 2.4 kbp in the wild type, 5.4 kbp in the homozygous mouse, and in both positions in the heterozygous mouse (Fig. 2A). Further, when the expression of mRNA in the lung of S1-5 gene was confirmed by Northern plot analysis, the expression of mRNA of the gene was not confirmed (FIG. 2B).
- mice S1-5 knockout mice aged 13 to 117 weeks (3 to 29 months old) were analyzed by necropsy and X-ray photography. Hair loss, facial skin wounds, nail necrosis, chest hypertrophy, ascites, liver tumors, bleeding mass in the fundus and adipose tissue, uterine hypertrophy ( Figures 3-6).
- Micro CT images of S1-5 knockout mice and wild-type mice were taken, and a 3D image of the thoracic vertebrae microphone CT image (Fig. 13) showed that the vertebral body surface of wild-type mice was smooth, whereas knockout mice Surface irregularities were conspicuous.
- peripheral quantitative computed tomography was measured and analyzed in detail.
- pQCT peripheral quantitative computed tomography
- a decrease in bone mineral density 'bone density was observed (Fig. 14). This phenomenon was particularly remarkable in female individuals.
- the stress-strain coefficient (SSI) was significantly decreased in S1-5 knockout mice compared to wild-type mice, indicating that bone strength had decreased.
- NTx type I collagen cross-linked N-telopeptide
- TRAP staining of bone tissue specimens was performed to confirm the number of osteoclasts in the tissues.
- images of each well photographed at the same magnification were taken into a computer, the portion corresponding to osteoclasts was surrounded by a line with Image J (distributed from NIH), and the area was calculated in pixels.
- Image J distributed from NIH
- M-CSF macrophage colony stimulating facter
- Hematocrit Regular use 3 ⁇ 4 It is necessary to place one end of a micro tube (75 mm length heparinized, Drummond Scientific Co.) into the blood, keep the appropriate inclination, raise the blood by capillary action, and increase the length of the capillary 2 Blood was collected until it reached / 3. Next, one end from which blood was sucked was sealed with a putty. The capillary tube with one end sealed was centrifuged at 11000 rpm for 5 minutes using a centrifuge, and the percentage was read using a measuring plate. As a result, S1-5 knockout mice tended to have low hematocrit values, indicating that they were anemic ( Figures 23 and 24).
- CHO-K1 cells that stably express S-to-His protein were prepared. Transfect 20 g of pCAGGS-SI-5-His and 0.7 g pcDNA3 at the same time using Lipofectamine 2000 to CHO-K1 cells (10 cm dish x 1). After 24 hours, dilute 10 times to obtain 6 10 cm dishes Sowing. Next, selection was started with 800 g / mL Geneticin 24 hours later, and colonies were picked up 11 days later. 16 colonies (96 clones in total) per 10 cm dish were seeded on a 96-well plate and scaled up to a 24-well plate and a 6-well plate.
- Proteins contained in the 250 mM Imidazole elution fraction were separated by 10% SDS-PAGE, and then silver staining (Fig. 29A) was detected by Western blotting using anti-S1-5 antibody (Fig. 29B). As a result, a single band was detected by the anti-S1-5 antibody.
- the eluted fraction was collected (approximately 4 ml), dialyzed against 1 L of PBS, and the sample was filtered (0.22 ⁇ m). Proteins contained in the 50 mM and 100 mM Imidazole elution fractions were separated by 10% SDS-PAGE and then detected by silver staining (FIG. 30). As a result, it was shown that an extra band disappeared in the fraction eluted with the purification buffer containing 100 mM Imidazole compared to 50 mM Imidazole, and a more purified S1-5 protein was obtained. It was.
- S1-5 has 6 EGF-like domains in the sequence.
- EGF-like domains were deleted one by one from the C-terminal, creating 6 constructs (Fig. 31).
- Ni-agarose was washed 3 times with washing buffer (20 mM Tris (pH 7.5), 500 mM NaCl, 10% Glycerol, 10 mM Imidazole), and then elution buffer (20 mM Tris (pH 7.5), 500 mM Sl-5 protein was eluted using NaCl, 10% Glycerol, 250 mM Imidazole).
- washing buffer (20 mM Tris (pH 7.5), 500 mM NaCl, 10% Glycerol, 10 mM Imidazole
- elution buffer 20 mM Tris (pH 7.5), 500 mM Sl-5 protein was eluted using NaCl, 10% Glycerol, 250 mM Imidazole.
- concentration of S1-5 protein was calculated by Western blotting (FIG. 32A).
- SI-5-FLAG truncate protein and SI-5-FLAG protein were prepared (FIG. 32B), and each expression vector was transfected into CHO-K1 cells (6-well plate). After 4 hours, the medium was replaced with serum-free medium (lml), and after incubation for 24 hours, the culture supernatant (900 ⁇ 1) was subjected to TCA precipitation. Thereafter, Western blotting using an anti-FLA G antibody was performed using the TCA precipitate and the cell extract. As a result, all truncate proteins were found to have higher expression levels compared to the full-length S1-5 protein, particularly high expression levels of the Sl-5 (E3) -FLAG protein.
- the FLAG-S1-5 truncate protein expressed in HEK293 cells was purified.
- HEK293 cells were seeded in a 150 mm dish (IWAKI) so as to be 80-90% confluent. The next day, transfection was performed using FuGENE6. The operation method followed the attached protocol. Two more days later, the cells were collected and lysis buffer (50 mM Tris-HCl (pH 7.4), 420 mM NaCl, 1 mM EDTA, 1 mM MgCl, 0.5 mM DTT, 1 mM PMSF) was added to 300.
- lysis buffer 50 mM Tris-HCl (pH 7.4), 420 mM NaCl, 1 mM EDTA, 1 mM MgCl, 0.5 mM DTT, 1 mM PMSF
- the supernatant is collected by centrifugation, 10-L of which is subjected to SDS-PAGE, identification of FLAG-Sl-5truncate protein purified by intracellular blotting by Western blotting ( Figure 33A), and concentration calculated by CBB staining did.
- the culture supernatant was collected 48 hours after transfection, 100 ⁇ L of anti-FLAG antibody bound to agarose beads was added, and the mixture was incubated at 4 ° C while stirring with a rotator. Thereafter, the same operation as described above was performed to identify the FLAG-S 1-5 protein purified from the culture supernatant and calculate the concentration (FIG. 33B). As a result, it was shown that S1-5 protein was purified from intracellular and culture supernatants (FIG. 33AB).
- the S1-5-FLAG protein forcedly expressed in 293F suspension cells was purified.
- the S1-5-FLAG protein expressed in the 293F cytoplasm was purified by the following process. 293F cells transfected with pcDNA3-S1-5-precission-FLAG plasmid were suspended in 90 ml, and the cells were collected 48 hours later. Lysis buffer (50 mM Tris-HC1 (pH 7.4), 420 mM NaCl, 1 mM EDTA, 1 mM MgCl, 0.5 mM DTT, 1 mM PMSF, 0.
- Lysis buffer 50 mM Tris-HC1 (pH 7.4), 420 mM NaCl, 1 mM EDTA, 1 mM MgCl, 0.5 mM DTT, 1 mM PMSF, 0.
- the eluate was dialyzed against precision buffer (50 mM Tris-HCl (pH 7.0), 150 mM NaCl, 1 mM EDTA, 1 mM DTT). 20 U precision protease was added, and the reaction was performed at 4 ° C for 5 hours. 50 ⁇ L of glutathione sepharose beads were added and incubated at 4 ° C for 1 hour with stirring in a rotator. The supernatant was collected and subjected to SDS-PAGE with the sample at each stage of purification and identified by Western blotting. Next, the S1-5-FLAG protein from the culture supernatant transformed into 293F cells was purified.
- precision buffer 50 mM Tris-HCl (pH 7.0), 150 mM NaCl, 1 mM EDTA, 1 mM DTT. 20 U precision protease was added, and the reaction was performed at 4 ° C for 5 hours. 50 ⁇ L of glutathione sepharose beads were added and
- S1-5 protein was actually subjected to glycosylation and examined.
- S1-5-His protein stable expression CHO-K1 cell culture supernatant strength was also purified from S1-5-His protein, CHO-K1 cell extract, and HT1080 cell culture supernatant.
- glycosyl peptidase F treatment 37 ° C, 17 hr
- Western blotting with anti-S1-5 antibody was performed (Fig. 35).
- a band shift of purified S-to-His protein (20 ng) was observed by glycosyl peptidase F treatment (left figure in Fig. 35).
- S1-5 protein Similarly, a band shift of S1-5 protein was also observed in the S1-5 protein immunoprecipitated from the culture supernatant of HT1080 cells (right figure in FIG. 35). From these results, S1-5 was considered to undergo N-linked glycosylation. In fact, S1-5 protein has a common sequence (N X (S / T) X ⁇ P). In addition, when we examined a broad band that was difficult to detect at low concentrations by increasing the amount of protein (120 ng), an overall band shift was observed, but the disappearance of broadband was strong. There was a possibility that 5 proteins were also subjected to 0-linked sugar chain modification (center figure in Fig. 35).
- a pGEX vector for expressing the GST-fused S-His protein was prepared, transformed into E. coli, and colonies were isolated. The isolated colonies were inoculated into 10 mL of LB-ampicillin medium (50 mg / mL ampicillin) and cultured at 37 ° C (preculture). The pre-cultured E. coli was added to 200 mL of LB-ampicillin medium, cultured at 37 ° C for 2 hours and a half (main culture), added with a final concentration of 0.5 mM IPTG, and further cultured at 30 ° C for 3 hours.
- Centrifuge the cells BC500 (20 mM Tris—HC1 (pH 8.0), 0.5 mM EDTA.500 mM KC1, 20% glycerol, 1% NP-40, 1 mM DTT, 0.5 mM PMSF, 1 ⁇ g / mL of aprotinin, pepstatin, and leu peptin) Suspend 5 mL and 100 mg / mL lysozyme in a volume of 100 ⁇ L, and destroy the bacteria with a sonicator.
- GSH glutathione S Transferase conjugated agarose beads
- MBP-S1-5 protein was purified by the same extraction method as in Example 20. As a result, it became clear that the most efficient elution conditions were when 10 mM Maltose was used. When the yield was compared with GST-S1-5 protein, it became clear that MBP-S1-5 was obtained efficiently at 450 ⁇ g / 500 mL culture (Fig. 37). It was also confirmed that MBP was cleaved when precision protease treatment was performed in the liquid layer as in the case of precision protease treatment GST-S1-5 (Fig. 38).
- Example 15 Using bone marrow cells derived from S 5 knockout mice and the protein purified in Example 15, the effect of the purified Sl-5-His protein on the osteoclast-forming ability in vitro was examined. Seed 5 x 10 5 bone marrow cells in a 96-well plate to obtain a final concentration of 50 ng / mL of M-CSF. After 2 days, RANKL was added to a final concentration of 100 ng / mL. S1-5 was diluted with PBS and continuously added to the culture solution at the final concentration of 0, 10, 30, and 100 ng / mL from the time M-CSF was added. Five days later, the cells were fixed and stained with TRAP to examine the effect of Sl-5-His protein on osteoclast formation.
- n 5
- the number of TRAP-positive multinucleated cells was significantly suppressed depending on the concentration of S-to-His protein (Fig. 39, 4 Do and the number of TRAP-positive multinucleated giant cells formed was also Sl-5-His. (Figs. 40 and 41)
- the Sl-5-His protein was added at final concentrations of 0, 10, 30, 100, 200, and 500 ng / mL.
- the area of TRAP-positive multinucleated giant cells was measured in the same manner, the size of TRAP-positive multinucleated giant cells was / J, depending on the Sl-5-His protein concentration (Fig. 42ABC).
- Example 16 Using bone marrow cells derived from S 5 knockout mice and the protein purified in Example 16, the effect of purified S1-5-E1-2 protein on osteoclast-forming ability in vitro was examined.
- the method is the same as that of Example 22 except that S1-5-E1-2 protein is added to a final concentration of 0,10 ng / mL.
- Sl-5 truncate suppressed the number of TRAP-positive multinucleated cells (Figs. 43 and 45).
- Figs. 44 and 45 The amino acid sequence of S1-5-E1-2 is shown in SEQ ID NO: 6.
- Example 18 Using RAW264.7 cells and the protein purified in Example 18, the effect of the purified S 1-5-F LAG protein on osteoclast-forming ability was examined.
- the method used was S1-5-FLAG protein derived from 293F suspension cells, cell-free expression (Abnova, Cat.No.H00002202-P01), and S1-5 protein at a final concentration of 0, 10, 30, 100, 200 ng / The same procedure as in Example 24 was performed, except that the amount was adjusted to mL.
- the S1-5-FLAG protein purified in Example 18 was added, the osteoclast-forming ability was suppressed depending on the concentration of S1-5-FLAG protein (FIG. 48).
- S1-5 protein with cell-free expression was added, the inhibitory effect was not observed (Fig. 49).
- Example 20 Using RAW264.7 cells and the protein purified in Example 20, the effect of purified GST-S1-5 protein and precision protease-treated GST-S1-5 protein on osteoclast shape performance was examined.
- the method consists of E. coli-derived GST-S1-5 protein and GST protein at final concentrations of 0, 1, 3, 10, 30, 100, 200 ng / mL, precision protease-treated GST-S1-5 protein and precision protease-treated GST protein.
- the same procedure as in Example 24 was performed, except that the final concentration was 0, 1, 3, 10, 30 ng / mL.
- the inhibitory effect of GST-S 1-5 protein and precision protease-treated GST-S1-5 protein was observed in a concentration-dependent manner (Figs.
- GST protein and precision protease treatment GST protein had no effect on osteoclast-forming ability (Figs. 52, 53, 56, 57). Even if a protein is removed from the GST tag by treatment with precision protease, its activity is retained and the tag can be removed. As a result, the activity was further enhanced.
- ovariectomy 7 weeks old Wister rats were subjected to ovariectomy (OVX), and subcutaneous administration of the protein purified in Example 20 was started. From OVX, 1.0 mg / kg / day was administered 5 times a week. Four weeks after the operation, the animals were sacrificed, the left and right femurs were removed and fixed with 70% ethanol, and the bone density was measured. Bone density was measured with DCS-600EX-IIIR (Aloka) by scanning the femur distal 1/4 at a slice thickness of 1 mm and a speed of 10 mm / s from the distal part to the proximal part in 20 sections. did.
- DCS-600EX-IIIR Aloka
- OVX-treated rats treated with GST and precision protease had about 10% lower bone density.
- the OVX model is said to have been created if bone density decreased by more than 10% (Modder, UI. Et al., Endcrinology 145: 913-9 21, 2004).
- increased bone density was observed in OVX-treated rats treated with precision protease-treated GST-Sl-5 protein. From these results, it was inferred that S1-5 protein improved osteoporosis (Fig. 58).
- Bone strength was analyzed in the femur of the rat examined in Example 27. Bone strength is MZ
- -500S (Malto Inc.) was measured by a three-point bending test with a load cell of 500N, a distance between fulcrums of 13mm, and a head speed of 10mm / min.
- Example 27 The femur of the rat examined in Example 27 was removed, and the soft tissue around the bone was removed and fixed with 70 o / o ethanol. After that, a 10% micro CT image of the diaphysis was taken from the growth plate cartilage. Compared to Sham, cancellous bone decreased in OVX-treated rats treated with GST protein and precision protease, whereas the purified tannin purified in Example 20 In OVX-treated rats that received the noxia, the cancellous bone loss was improved (Fig. 60). From this image, it was suggested that S1-5 protein has an osteoclast inhibitory effect.
- the rat tibia examined in Example 27 was removed, and the soft tissue around the bone was removed and fixed with 70% ethanol. Subsequently, bone tissue specimens were stained with TRAP, and the number of osteoclasts in the tissue was measured. As a result, the number of osteoclasts increased in the OVX-treated rats treated with GST protein and precision protease at the proximal tibia metaphysis, compared with Sham. The increase in osteoclast numbers was suppressed in OVX-treated rats treated with the protein (Fig. 61).
- OVX treatment was performed on 7-week-old C57BL / 6j mice, and the protein purified in Example 20 was administered subcutaneously. From OVX, 1.0 mg / kg / day was administered 5 times a week. Eight weeks after the operation, the mice were sacrificed, the femurs of the mice were removed and fixed with 70% ethanol, and the bone density was measured. The bone density was measured by DCS-600EX-niR (Aloka), and the femur distal 1/4 was scanned 20 times from the distal part to the proximal part with a slice thickness of 1 mm and a speed of 10 mm / s. Measured.
- the present invention provides a knockout animal that is deficient in the S1-5 gene and causes an age-related disease and a method for producing the same. Since the animal of the present invention exhibits various age-related diseases or symptoms such as bone deformation, hair loss, tissue damage, tumor development, etc., by administering a substance effective for the treatment or prevention of age-related diseases to the animal. It can be used as a model animal for screening a pharmaceutical composition that provides a therapeutic or ameliorating effect. The present invention also provides a cell isolated from the knockout animal. Using the cells Thus, a drug for treatment or prevention of age-related diseases can be screened.
- the knockout animal power The isolated bone marrow cells have the ability to form tartrate-resistant acid phosphatase (TRAP) -positive multinucleated giant cells when separated into osteoclasts. Since it is higher than bone marrow cells, osteoclast function inhibitors can be screened using the number and / or size of TRAP-positive multinucleated giant cells as an index. Furthermore, isolated S1-5 proteins and antibodies that bind to S1-5 proteins are also provided. By using the isolated S1-5 protein, it becomes possible to treat or prevent age-related diseases and to suppress the function of osteoclasts.
- TRAP tartrate-resistant acid phosphatase
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US11/994,327 US20100058488A1 (en) | 2005-07-01 | 2005-12-28 | Protein formulations comprising s1-5 |
EP05844884A EP1764413A1 (en) | 2005-07-01 | 2005-12-28 | Protein preparation containing s1-5 |
AU2005333933A AU2005333933A1 (en) | 2005-07-01 | 2005-12-28 | Protein preparation containing S1-5 |
CA002613813A CA2613813A1 (en) | 2005-07-01 | 2005-12-28 | Protein preparation containing s1-5 |
JP2007523335A JPWO2007004325A1 (ja) | 2005-07-01 | 2005-12-28 | S1−5を含有するタンパク質製剤 |
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PCT/JP2005/012251 WO2006004066A1 (ja) | 2004-07-02 | 2005-07-01 | S1-5を含有するタンパク質製剤 |
JPPCT/JP2005/012251 | 2005-07-01 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2009016855A1 (ja) * | 2007-08-02 | 2009-02-05 | National University Corporation Kanazawa University | 脱毛の抑制方法および毛髪の脱色素化の抑制方法 |
JP2009118807A (ja) * | 2007-11-16 | 2009-06-04 | Jentekku:Kk | Drp1欠損非ヒト哺乳動物 |
JP2015038078A (ja) * | 2009-08-21 | 2015-02-26 | アフィリス・アクチェンゲゼルシャフトAffiris Ag | アルファシヌクレイン・エピトープのミモトープのレヴィ小体病治療への使用 |
WO2015163234A1 (ja) * | 2014-04-22 | 2015-10-29 | 中島 利博 | 骨粗鬆症モデル動物の作成方法 |
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CA2719267A1 (en) * | 2008-04-25 | 2009-10-29 | New York Blood Center, Inc. | Abi1/hssh3bp1 conditional knockout mouse |
EP2297582A1 (en) | 2008-06-03 | 2011-03-23 | Université de Liège | Biomarker for osteoarthritis and/or other ageing-related diseases, and use thereof. |
EP2131199A1 (en) * | 2008-06-03 | 2009-12-09 | Université de Liège | Biomarker for osteoarthritis and/or other ageing-related diseases, and use thereof |
CN103689607A (zh) * | 2013-11-26 | 2014-04-02 | 雷家荃 | 林蛙高蛋白钙粉在制备补钙保健品或药物中的应用 |
CN111903604B (zh) * | 2020-07-23 | 2022-05-24 | 北京市华都峪口禽业有限责任公司 | 白羽肉鸡配套制种方法 |
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WO2002052007A1 (fr) * | 2000-12-22 | 2002-07-04 | Locomogene, Inc. | Proteine de cellule de membrane synoviale |
JP2004515209A (ja) * | 2000-04-05 | 2004-05-27 | ゲノム セラピューティックス コーポレーション | 11q13.3の高骨量遺伝子 |
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US6770461B1 (en) * | 1998-10-23 | 2004-08-03 | Genome Therapeutics Corporation | High bone mass gene of 11q13.3 |
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JP2004515209A (ja) * | 2000-04-05 | 2004-05-27 | ゲノム セラピューティックス コーポレーション | 11q13.3の高骨量遺伝子 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009016855A1 (ja) * | 2007-08-02 | 2009-02-05 | National University Corporation Kanazawa University | 脱毛の抑制方法および毛髪の脱色素化の抑制方法 |
JP2009118807A (ja) * | 2007-11-16 | 2009-06-04 | Jentekku:Kk | Drp1欠損非ヒト哺乳動物 |
JP2015038078A (ja) * | 2009-08-21 | 2015-02-26 | アフィリス・アクチェンゲゼルシャフトAffiris Ag | アルファシヌクレイン・エピトープのミモトープのレヴィ小体病治療への使用 |
WO2015163234A1 (ja) * | 2014-04-22 | 2015-10-29 | 中島 利博 | 骨粗鬆症モデル動物の作成方法 |
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JPWO2007004325A1 (ja) | 2009-01-22 |
US20100058488A1 (en) | 2010-03-04 |
WO2006004066A1 (ja) | 2006-01-12 |
KR20080032139A (ko) | 2008-04-14 |
CN101258240A (zh) | 2008-09-03 |
RU2008103838A (ru) | 2009-08-10 |
CA2613813A1 (en) | 2007-01-11 |
AU2005333933A1 (en) | 2007-01-11 |
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